Sports Betting Odds Converter
Sports & GamingConvert American odds to decimal odds and implied probability.
Decimal Odds
The equivalent decimal odds format, common outside the US.
Implied Probability
60.0%
The bookmaker's implied probability of this outcome occurring, based on the odds.
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Sports & Gaming calculators
Frequently Asked Questions
What does a positive vs. negative American odds number mean?
Positive odds (e.g. +150) show how much profit you'd win on a $100 bet (an underdog), while negative odds (e.g. -150) show how much you'd need to bet to win $100 profit (a favorite).
Why does implied probability not equal exactly 100% across all outcomes?
Bookmakers build in a margin (often called "vig" or "juice") by setting odds so the total implied probability across all outcomes exceeds 100% — this margin is effectively the house's built-in edge.
What is decimal odds format used for?
Decimal odds are the standard format in Europe, Australia, and Canada, and directly show your total payout (including stake) per $1 wagered — many bettors find them more intuitive for quick payout calculations than American odds.
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